On possible superconductivity in the doped ladder compound La_(1-x)Sr_xCuO_2.5
Strongly Correlated Electrons
2009-10-31 v1 Superconductivity
Abstract
LaCuO_2.5 is a system of coupled, two-chain, cuprate ladders which may be doped systematically by Sr substitution. Motivated by the recent synthesis of single crystals, we investigate theoretically the possibility of superconductivity in this compound. We use a model of spin fluctuation-mediated superconductivity, where the pairing potential is strongly peaked at \pi in the ladder direction. We solve the coupled gap equations on the bonding and antibonding ladder bands to find superconducting solutions across the range of doping, and discuss their relevance to the real material.
Cite
@article{arxiv.cond-mat/9812211,
title = {On possible superconductivity in the doped ladder compound La_(1-x)Sr_xCuO_2.5},
author = {B. Normand and D. F. Agterberg and T. M. Rice},
journal= {arXiv preprint arXiv:cond-mat/9812211},
year = {2009}
}
Comments
RevTex, 4 pages, 7 figures